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how many chloride ions arein 25 mL of an aquious solution of 0.224 M MgCl2
 one year ago
 one year ago
how many chloride ions arein 25 mL of an aquious solution of 0.224 M MgCl2
 one year ago
 one year ago

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aaronqBest ResponseYou've already chosen the best response.2
find how many moles you have, then knowing that 1 mole = 6.023x10^23 atoms/ions/molecules, find how many ions you got
 one year ago

JusaquikieBest ResponseYou've already chosen the best response.0
i know the MM of MgCl2= 95.21 and i know that there are 6.022 ions per mole but i missing the inbetween i think. i converted it to grams but don't think i'm going the right direction.
 one year ago

JusaquikieBest ResponseYou've already chosen the best response.0
so to get the moles of Cl i would take the MM of Cl2 divided by the MM of MgCL2?
 one year ago

aaronqBest ResponseYou've already chosen the best response.2
you're working with molarity (M), so use the formula for molarity and plug stuff n solve for moles
 one year ago

aaronqBest ResponseYou've already chosen the best response.2
no, you don't need the molar mass for this problem, but you do need to know that MgCl2 dissociates into Mg^2+ + 2Cl^
 one year ago

aaronqBest ResponseYou've already chosen the best response.2
so the amount of ions will be 3 times that of the moles
 one year ago

aaronqBest ResponseYou've already chosen the best response.2
you have molarity=moles/L of solvent M=n/V 0.224 M = n/0.025 L solve for n, then multiply times avogadros number, and you know that is dissociates into 3 ions, so multiply by 3
 one year ago

JusaquikieBest ResponseYou've already chosen the best response.0
Thank you this makes sense now.
 one year ago
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